42251211 has 12 divisors (see below), whose sum is σ = 61476792. Its totient is φ = 27961056.

The previous prime is 42251203. The next prime is 42251227. The reversal of 42251211 is 11215224.

42251211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42251211 - 2³ = 42251203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42251291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15901 + ... + 18366.

It is an arithmetic number, because the mean of its divisors is an integer number (5123066).

Almost surely, 2^42251211 is an apocalyptic number.

42251211 is a deficient number, since it is larger than the sum of its proper divisors (19225581).

42251211 is a wasteful number, since it uses less digits than its factorization.

42251211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410 (or 34407 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 42251211 is about 6500.0931531787. The cubic root of 42251211 is about 348.2943160183.

Adding to 42251211 its reverse (11215224), we get a palindrome (53466435).

The spelling of 42251211 in words is "forty-two million, two hundred fifty-one thousand, two hundred eleven".